//Copyright 2013 Vastech SA (PTY) LTD
//
//   Licensed under the Apache License, Version 2.0 (the "License");
//   you may not use this file except in compliance with the License.
//   You may obtain a copy of the License at
//
//       http://www.apache.org/licenses/LICENSE-2.0
//
//   Unless required by applicable law or agreed to in writing, software
//   distributed under the License is distributed on an "AS IS" BASIS,
//   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
//   See the License for the specific language governing permissions and
//   limitations under the License.

package ast

import (
	"bytes"
	"fmt"
)

type LexGroupPattern struct {
	*LexPattern
}

func NewLexGroupPattern(pattern interface{}) (*LexGroupPattern, error) {
	return &LexGroupPattern{pattern.(*LexPattern)}, nil
}

func (this *LexGroupPattern) IsTerminal() bool {
	return false
}

func (this *LexGroupPattern) String() string {
	buf := new(bytes.Buffer)
	fmt.Fprintf(buf, "(%s)", this.LexPattern.String())
	return buf.String()
}
